1、人教版七年级数学下册二元一次方程组练习题224 4x y=3 7x5y=-8 5x3y=-20 x5y=-2 2x4y=6 3x3y=7 2x5y=-4 2x8y=1 x3y=7 4x2y=-3 3x3y=-2 2x4y=-2 x5y=8 9x5y=1 9x8y=29 3x4y=6 4x3y=-1 2x4y=9 2x4y=0 2x6y=8 8x4y=-7 x4y=-3 x3y=3 x5y=-7 5x2y=0 4x7y=-8 7x y=16 4x2y=5 3x4y=4 5x2y=-1 4x y=2 8x7y=3 8x3y=26 3x y=2 x4y=-5 x y=-6 3x4y=-8 3x7y=
2、-5 2x y=-4 3x y=9 2x y=-9 4x5y=8 x y=-8 x4y=4 9x3y=20 5x4y=-2 2x4y=1 x2y=-5 2x4y=0 4x9y=9 8x9y=25 5x4y=5 5x y=-2 5x y=-1 2x3y=1 9x2y=1 7x y=14 3x3y=-3 5x2y=7 3x5y=3 5x3y=-8 x8y=0 2x8y=16 x5y=8 3x2y=-8 x2y=0 2x5y=4 8x9y=9 8x y=-27 2x y=1 5x2y=-3 x y=8 4x4y=4 8x3y=-7 5x4y=29 x3y=2 x3y=9 4x5y=6 x y=5 8
3、x8y=9 2x5y=-17 5x3y=8 3x y=4 4x4y=3 2x2y=7 8x3y=0 8x4y=-13 2x2y=-4 2x4y=-7 x3y=9 4x3y=6 2x3y=5 5x5y=-14 2x y=-2 5x3y=1 2x4y=8 5x4y=-1 5x3y=5 x6y=-6 x4y=0 3x2y=-6 2x3y=-2 5x4y=-5 x y=2 2x9y=12 4x y=-1 2x y=4 x4y=2 2x4y=4 6x2y=2 4x4y=-29 4x4y=3 5x5y=5 x y=5 4x4y=-7 6x8y=-1 7x3y=-24 x5y=8 x3y=-3 4x2y=6
4、 x2y=3 x2y=3 6x2y=21 2x3y=1 5x5y=3 3x4y=8 x2y=5 2x4y=-2 8x6y=4 2x2y=5 2x y=-4 3x3y=4 x2y=5 3x4y=-8 x6y=2 x y=0 4x y=-5 x5y=0 3x4y=-5 6x6y=4 5x3y=17 3x2y=4 5x5y=-1 2x3y=2 4x4y=-4 8x4y=8 6x8y=-17 5x y=-4 5x y=7 x3y=5 x3y=-8 4x4y=-4 9x9y=-17 4x3y=8 x4y=-8 3x2y=9 4x5y=6 9x9y=-3 x9y=28 2x3y=2 4x2y=7 5x2y
5、=-7 x y=8 7x9y=6 9x2y=-5 4x2y=7 2x5y=-8 2x5y=-6 4x4y=1 8x4y=5 x3y=-16 5x4y=8 2x4y=-6 x3y=8 4x2y=2 5x7y=-9 7x4y=-8 5x4y=0 2x y=-7 x y=3 x3y=4 2x2y=-5 9x4y=26 5x2y=1 5x4y=8 4x2y=7 2x2y=5 9x6y=-7 2x y=17 5x y=-3 3x5y=-3 4x2y=8 5x3y=0 6x6y=3 4x9y=21 2x4y=-4 5x3y=-7 x y=5 2x5y=8 2x6y=-7 4x4y=-20 x4y=-1 2
6、x3y=8 2x4y=4 4x y=-8 3x4y=-1 2x5y=10 5x2y=1 3x3y=7 5x3y=-8 5x2y=-1 3x2y=-4 8x6y=20 2x5y=-5 4x3y=9 x5y=2 x5y=1 6x8y=-2 4x y=29 x4y=-8 3x3y=1 x5y=0 x5y=-5 x3y=-1 2x8y=-25 3x3y=-8 x4y=6 4x2y=8 2x5y=9 4x5y=-9 x5y=-8 3x2y=3 2x y=1 5x5y=7 5x2y=-9 6x8y=5 x6y=-4 3x3y=0 4x5y=-9 3x2y=-1 2x4y=4 2x y=-9 9x8y=-2
7、2 5x2y=5 5x3y=-8 5x4y=6 4x5y=-6 8x5y=5 8x9y=2 2x2y=-3 x y=-6 2x y=-8 x y=-5 2x3y=-5 2x3y=15 5x4y=-4 4x2y=7 5x y=-3 2x y=7 7x3y=9 4x9y=7 5x2y=-4 5x4y=-1 x2y=4 2x y=-8 x2y=-8 7x3y=24 2x y=3 4x2y=-6 5x5y=8 2x y=2 8x6y=-6 6x2y=20 3x3y=2 x3y=-3 x5y=-4 3x2y=2 7x y=-7 5x6y=-28 5x4y=-8 4x4y=0 3x4y=5 4x5y=-8
8、 4x8y=-7 9x2y=-23 2x y=-2 4x3y=5 2x y=-1 2x2y=-3 2x6y=-4 x3y=9 4x y=2 3x5y=0 x2y=-9 x3y=-9 8x7y=-9 7x3y=20 5x4y=3 5x y=-9 3x y=-7 x3y=-5 2x8y=0 4x7y=14 x5y=-1 3x2y=-1 4x3y=3 3x4y=2 5x6y=-4 9x4y=12 5x y=1 5x3y=-5 x3y=0 3x y=-8 8x7y=0 7x y=-14 5x2y=-4 3x5y=2 2x3y=2 5x2y=-2 9x6y=-9 2x6y=-24 2x3y=2 5x y
9、=4 x5y=2 5x3y=-4 7x2y=-5 2x9y=3 x4y=6 x2y=6 x2y=-5 x y=-4 x5y=4 2x5y=-4 5x y=-7 4x2y=8 4x y=-3 2x2y=-1 4x3y=5 6x4y=26 x2y=0 5x y=-2 x5y=-7 4x5y=4 7x y=-9 2x3y=-4 3x y=-8 2x y=-5 4x3y=-1 4x3y=-4 7x y=-4 7x5y=-16 x y=5 4x2y=-4 5x y=6 x2y=-7 2x7y=-1 5x6y=23 4x4y=-1 2x y=9 3x5y=-6 x2y=2 3x7y=-9 6x2y=-25
10、 5x2y=-2 2x5y=6 3x2y=-9 3x4y=1 6x2y=7 8x3y=6 2x2y=-1 2x4y=8 5x2y=7 5x5y=-4 6x y=0 x5y=28 5x5y=3 2x4y=4 x4y=-1 3x3y=-4 x4y=-6 3x y=-16 3x2y=9 x2y=0 3x4y=-1 5x4y=-2 9x8y=2 8x y=11 4x3y=-4 x3y=2 4x5y=-6 3x4y=6 x7y=-6 5x2y=15 2x3y=8 3x5y=-7 4x4y=-2 5x2y=-5 2x6y=-5 8x8y=-2 x4y=-5 5x5y=-9 3x3y=0 4x2y=-5 4
11、x9y=-4 6x3y=-10 4x2y=-6 5x4y=-5 x5y=-8 3x4y=-4 9x2y=-3 3x4y=8 4x2y=3 4x3y=6 x5y=-2 x y=-4 5x5y=-3 4x8y=12 5x y=9 4x y=7 2x5y=0 3x y=6 9x5y=-2 x4y=-11 5x2y=3 3x2y=-5 4x3y=6 3x5y=6 4x7y=0 6x y=30 2x4y=6 4x3y=0 x2y=2 4x3y=1 x2y=-2 3x9y=-10 2x4y=7 2x3y=7 5x5y=6 3x4y=-7 6x9y=1 2x3y=-8 3x5y=-6 2x5y=-5 2x2y=9 2x y=-3 2x2y=6 5x9y=3 3x y=8 2x4y=-7 4x5y=4 5x3y=-5 8x4y=-7 3x5y=9 4x3y=5 x y=8 2x3y=4 3x3y=2 7x5y=1 9x8y=10 x y=-6 x2y=0 x5y=8 x3y=6 9x2y=-8 3x6y=-11 4x y=-4 x y=-2 x5y=-6 5x2y=-7 2x y=-4 2x y=30 3x4y=8 2x3y=-2 4x3y=-5 3x5y=9 7x3y=-5 x9y=-20 5x y=2 3x3y=-8 x y=-5
